Home / 2,865.05-4,297.68-1,403.81

Finding the Fourth Proportional to 2,865.05, 4,297.68 and 1,403.81

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Solution

The fourth proportional to 2,865.05, 4,297.68 and 1,403.81 is: 2,105.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,865.05 : 4,297.68 = 1,403.81 : x
  2. Step 2: Convert to fraction form
    2,865.05/4,297.68 = 1,403.81/x
  3. Step 3: Cross multiply
    2,865.05x = 4,297.68 × 1,403.81
  4. Step 4: Simplify right side
    2,865.05x = 6,033,136.91
  5. Step 5: Solve for x
    x = 6,033,136.91/2,865.05
  6. Step 6: Final answer
    x = 2,105.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.